[PATCH v2 1/4] system_data_types.7: Add int_leastN_t family of types

[Jonathan Wakely]

On Fri, 2 Oct 2020 at 09:36, Alejandro Colomar via Gcc <gcc@gcc.gnu.org> wrote:
>
> Hi Paul,
>
> On 2020-10-01 19:38, Paul Eggert wrote:
>  > On 10/1/20 7:35 AM, Alejandro Colomar via Libc-alpha wrote:
>  >> +The narrowest signed integer type
>  >> +of a width of at least N bits,
>  >
>  > Motivation is missing here. Why is there an int_leastN_t type at all?
>
> Well, I'd say the motivation is for the standard to allow
> unicorn implementations that have types that are not of normal widths
> For example, this allows an implementation to have an int of 33 bits,
> have int_least32_t be that int, and then not provide int32_t.

C allows that, but POSIX says int32_t is required.